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Understanding DNA Replication Process

Learn about the structure of DNA, nucleotides, and the importance of DNA replication through interactive labs and games. Discover the steps involved in DNA replication and how cells duplicate genetic information.

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Understanding DNA Replication Process

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  1. Bell warm up 01/07/10 A nucleotide consists of: 1._____________ 2. ____________ 3._____________

  2. Importance of DNA Genetically engineered glowing tobacco plant Genetically engineered glowing fish

  3. DNA Replication

  4. DNA Notes • DNA = Deoxyribo nucleic acid • Made up of repeating units called nucleotides. • A nucleotide consist of ( sugar (deoxyribose), phosphates and nitrogeneous bases

  5. Cell division and DNA replication • Cells divide Growth, Repair, Replacement • Before cells divide they have to double cell • structures, organelles and their genetic • information

  6. Notes: • Structure was discovered in 1953 by James • Watson and Francis Crick

  7. DNA replication

  8. DNA replication DNA Replication Steps 1. DNA unwinding 2. Unzipping (hydrogen bonds break) 3. New strands made– free floating nucleotides form to build new strand Note: DNA replication is said to be Semi-conservative because: One strand is the original (conserved) One strand is freshly assembled (semi-half)

  9. DNA replication steps unzipping DNA New nucleotides assembled

  10. DNA replication http://www.stolaf.edu/people/giannini/flashanimat/molgenetics/dna-rna2.swf

  11. DNA replication Let’s build our own DNA model and simulate DNA replication. http://www.phschool.com/atschool/phbio/dna_replication/index.html

  12. DNA replication DNA Double helix game http://nobelprize.org/educational_games/medicine/dna_double_helix/

  13. Replication Lab Pick A T C G C T (lay them on the table) Make the other side to make a double helix Now lets replicate: 3. UNWIND your DNA get teacher’s approval 4.UNZIPyour DNA Build new strands Put the labels in the correct places ( DNA polymerase, new strand, old strand)

  14. Lab 2 • Create your own DNA with 6rungs or steps • REPLICATE • Show your teacher the end product with the lables in the correct places • Complete the given worksheet • Turn in your work as a group, clean up and go back to your seat in front

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